| Presentation | 2001/4/13 Lossless Near-lossless and Lossy Integrated Cording based on Lossless DCT Somchart Chokchaitam, Tokimichi Kanetaka, Masahiro Iwahashi, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a new coding method integrating 3 coding modes - lossless, near-lossless and lossy coding modes - under a unified single algorithm based on lossless DCT (L-DCT). In lossless mode, only the L-DCT and an entropy coder are used. In lossy mode, transformed coefficients of the L-DCT are quantized and then entropy coded as same as a conventional lossy method for compatibility. In this manner, coding results are almost similar to these of the conventional lossy method except high bit rate because of rounding operation in the L-DCT. Therefore, in near-lossless mode, we put quantization before the L-DCT to avoid the rounding effect. The turning point between near-lossless mode and lossy mode is also theoretically analyzed. Simulation results confirm effectiveness of our integrated system. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Lossless / Near-lossless / Lossy / Integrated cording / DCT |
| Paper # | DSP2001-4,IE2001-4,MI2001-4 |
| Date of Issue |
| Conference Information | |
| Committee | IE |
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| Conference Date | 2001/4/13(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Image Engineering (IE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Lossless Near-lossless and Lossy Integrated Cording based on Lossless DCT |
| Sub Title (in English) | |
| Keyword(1) | Lossless |
| Keyword(2) | Near-lossless |
| Keyword(3) | Lossy |
| Keyword(4) | Integrated cording |
| Keyword(5) | DCT |
| 1st Author's Name | Somchart Chokchaitam |
| 1st Author's Affiliation | Department of Electrical Engineering, Nagaoka University of technology() |
| 2nd Author's Name | Tokimichi Kanetaka |
| 2nd Author's Affiliation | Department of Electrical Engineering, Nagaoka University of technology |
| 3rd Author's Name | Masahiro Iwahashi |
| 3rd Author's Affiliation | Department of Electrical Engineering, Nagaoka University of technology |
| Date | 2001/4/13 |
| Paper # | DSP2001-4,IE2001-4,MI2001-4 |
| Volume (vol) | vol.101 |
| Number (no) | 19 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |